Fisherman’s sighting of unusually dark, diamond-shaped iceberg fuels speculation about ancient debris, volcanic ash, and glacial history.
A Canadian fisherman has captured rare footage of a jet-black iceberg, extraordinary both in its color and shape, drifting approximately 6 km off the coast of Labrador sea.
The sighting has reignited debate among scientists and enthusiasts over the iceberg’s dark origins and geological age.
Hallur Antoniussen, a Faroese fisherman with over five decades of experience in Arctic waters, described the iceberg as resembling a diamond-shaped rock, estimating it to be at least three times the size of a bungalow.
He dismissed ordinary shadows as the cause of its color, calling it "completely black" and unlike anything he'd ever seen.
What Makes It Black?
Glaciologist Lev Tarasov from Memorial University explains that the dark hue is most likely due to embedded sediment and debris, scraped from the glacier's base during its formation.
As the iceberg melts, its cleaner ice may have disappeared, leaving the ancient debris-laden core exposed . Experts estimate the iceberg could be nearly 100,000 years old.
Alternative theories suggest the dark color might originate from volcanic ash or even meteorite dust deposited during ancient geological events—though these remain speculative.
Visual and Cultural Impact
Images and video of the black iceberg have gone viral, with users drawing comparisons to alien structures and ghosts of the deep. The iceberg’s polyhedral, almost jewel-like form adds to its mystique, prompting both fascination and awe.
Glaciological Context
Icebergs in Canada’s Iceberg Alley—spanning Newfoundland to Labrador—commonly carry embedded sediment, leading to gray or brown hues.
Debris inclusion is a well-known process, particularly when glaciers scour bedrock before calving into the ocean.
Despite the unusual palette, experts affirm the structure is glaciological in nature—not a geological anomaly—with its dark tone offering insights into the iceberg's antique origin and melting history.
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